The rfc822 module has been deprecated for a while but is still used in the 
stdlib (at least in 'cgi' and 'test_urllib2'). All uses need to go before 
the module can be removed.

A quick search for rfc822 imports in py3k reveals this:

$ find . -name '*.py' | xargs egrep -nr '(from|import) rfc822'
./Demo/scripts/mboxconvert.py:7:import rfc822
./Lib/cgi.py:39:import rfc822
./Lib/mimetools.py:5:import rfc822
./Lib/test/test_rfc822.py:1:import rfc822
./Lib/test/test_urllib2.py:587:        import rfc822, socket
./Tools/faqwiz/faqwiz.py:210:            import rfc822
./Tools/scripts/mailerdaemon.py:3:import rfc822
./Tools/versioncheck/pyversioncheck.py:2:import rfc822

The real "release blockers" should be cgi, mimetools and test_urllib2.

Correction: mimetools is also being removed from py3k (issue 2848).

Tried to just replace rfc822.Message with email.message_from_file in 
cgi.py but it didn't work. I still have to figure out how to fix 
FieldStorage.read_multi.

Seems that removing rfc822 from `cgi` is not an easy task -- please see issue 1112856.

Added a patch that successfully removes rfc822 dependency from the cgi 
module, using ideas from issue 1112856. I had to change one test, as the 
email FeedParser ignores trailing spaces in subparts.

With the attached patches, rfc822 won't be used anywhere inside Lib/ 
anymore (with the exception of mimetools, which is going away too).

Is there any reason to convert the files below? Shouldn't they be removed 
from 3.0?
Demo/scripts/mboxconvert.py -> superseded by mailbox.py
Tools/faqwiz/faqwiz.py -> really old (1998)
Tools/scripts/mailerdaemon.py -> still useful?
Tools/versioncheck/pyversioncheck.py -> really old (1997)

On Sun, Jun 1, 2008 at 8:33 PM, Humberto Diogenes
<report@bugs.python.org> wrote:
>
> Humberto Diogenes <humberto@digi.com.br> added the comment:
>
> With the attached patches, rfc822 won't be used anywhere inside Lib/
> anymore (with the exception of mimetools, which is going away too).
>
> Is there any reason to convert the files below? Shouldn't they be removed
> from 3.0?
> Demo/scripts/mboxconvert.py -> superseded by mailbox.py
> Tools/faqwiz/faqwiz.py -> really old (1998)
> Tools/scripts/mailerdaemon.py -> still useful?
> Tools/versioncheck/pyversioncheck.py -> really old (1997)
>

Probably. I bet both the Demo and Tools directory need a thorough clean-up.

Reviewed and applied to Python 3.0 in r64161.  The patch did not apply
cleanly for 2.6.  I'm going to bump this down to critical for the first
betas.  Humberto, can you back port it to Python 2.6?

[msg68060]
>> Why does it need to be in 2.6? mimetools is still there.
>
> I guess you're right, it doesn't.

So, does it make sense to backport this too?

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On Jun 12, 2008, at 4:36 PM, Humberto Diogenes wrote:

> Humberto Diogenes <humberto@digi.com.br> added the comment:
>
> [msg68060]
>>> Why does it need to be in 2.6? mimetools is still there.
>>
>> I guess you're right, it doesn't.
>
> So, does it make sense to backport this too?

No.

Thanks,
- -Barry

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I've removed the whole module in r64203.